/*
 * Copyright © 2004-2021 L2J Server
 * 
 * This file is part of L2J Server.
 * 
 * L2J Server is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * L2J Server is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.l2jserver.gameserver.network.clientpackets;

import static com.l2jserver.gameserver.config.Configuration.character;
import static com.l2jserver.gameserver.config.Configuration.general;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.l2jserver.commons.util.Rnd;
import com.l2jserver.gameserver.data.xml.impl.EnchantSkillGroupsData;
import com.l2jserver.gameserver.datatables.SkillData;
import com.l2jserver.gameserver.model.L2EnchantSkillGroup.EnchantSkillHolder;
import com.l2jserver.gameserver.model.L2EnchantSkillLearn;
import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
import com.l2jserver.gameserver.model.itemcontainer.Inventory;
import com.l2jserver.gameserver.model.items.instance.L2ItemInstance;
import com.l2jserver.gameserver.model.skills.Skill;
import com.l2jserver.gameserver.network.SystemMessageId;
import com.l2jserver.gameserver.network.serverpackets.ExBrExtraUserInfo;
import com.l2jserver.gameserver.network.serverpackets.ExEnchantSkillInfo;
import com.l2jserver.gameserver.network.serverpackets.ExEnchantSkillInfoDetail;
import com.l2jserver.gameserver.network.serverpackets.ExEnchantSkillResult;
import com.l2jserver.gameserver.network.serverpackets.SystemMessage;
import com.l2jserver.gameserver.network.serverpackets.UserInfo;

/**
 * Format (ch) dd c: (id) 0xD0 h: (subid) 0x06 d: skill id d: skill lvl
 * @author -Wooden-
 */
public final class RequestExEnchantSkill extends L2GameClientPacket {
	
	private static final Logger LOG_ENCHANT_SKILL = LoggerFactory.getLogger("enchant_skill");
	
	private static final String _C__D0_0F_REQUESTEXENCHANTSKILL = "[C] D0:0F RequestExEnchantSkill";
	
	private int _skillId;
	private int _skillLvl;
	
	@Override
	protected void readImpl() {
		_skillId = readD();
		_skillLvl = readD();
	}
	
	@Override
	protected void runImpl() {
		if ((_skillId <= 0) || (_skillLvl <= 0)) {
			return;
		}
		
		final L2PcInstance player = getClient().getActiveChar();
		if (player == null) {
			return;
		}
		
		if (player.getClassId().level() < 3) // requires to have 3rd class quest completed
		{
			player.sendPacket(SystemMessageId.YOU_CANNOT_USE_SKILL_ENCHANT_IN_THIS_CLASS);
			return;
		}
		
		if (player.getLevel() < 76) {
			player.sendPacket(SystemMessageId.YOU_CANNOT_USE_SKILL_ENCHANT_ON_THIS_LEVEL);
			return;
		}
		
		if (!player.isAllowedToEnchantSkills()) {
			player.sendPacket(SystemMessageId.YOU_CANNOT_USE_SKILL_ENCHANT_ATTACKING_TRANSFORMED_BOAT);
			return;
		}
		
		final Skill skill = SkillData.getInstance().getSkill(_skillId, _skillLvl);
		if (skill == null) {
			return;
		}
		
		final L2EnchantSkillLearn s = EnchantSkillGroupsData.getInstance().getSkillEnchantmentBySkillId(_skillId);
		if (s == null) {
			return;
		}
		final EnchantSkillHolder esd = s.getEnchantSkillHolder(_skillLvl);
		final int beforeEnchantSkillLevel = player.getSkillLevel(_skillId);
		if (beforeEnchantSkillLevel != s.getMinSkillLevel(_skillLvl)) {
			return;
		}
		
		final int costMultiplier = general().getNormalEnchantCostMultipiler();
		final int requiredSp = esd.getSpCost() * costMultiplier;
		if (player.getSp() >= requiredSp) {
			// only first lvl requires book
			final boolean usesBook = (_skillLvl % 100) == 1; // 101, 201, 301 ...
			final int reqItemId = EnchantSkillGroupsData.NORMAL_ENCHANT_BOOK;
			final L2ItemInstance spb = player.getInventory().getItemByItemId(reqItemId);
			
			if (character().enchantSkillSpBookNeeded() && usesBook && (spb == null)) // Haven't spellbook
			{
				player.sendPacket(SystemMessageId.YOU_DONT_HAVE_ALL_OF_THE_ITEMS_NEEDED_TO_ENCHANT_THAT_SKILL);
				return;
			}
			
			final int requiredAdena = (esd.getAdenaCost() * costMultiplier);
			if (player.getInventory().getAdena() < requiredAdena) {
				player.sendPacket(SystemMessageId.YOU_DONT_HAVE_ALL_OF_THE_ITEMS_NEEDED_TO_ENCHANT_THAT_SKILL);
				return;
			}
			
			boolean check = player.removeSp(requiredSp);
			if (character().enchantSkillSpBookNeeded() && usesBook) {
				check &= player.destroyItem("Consume", spb.getObjectId(), 1, player, true);
			}
			
			check &= player.destroyItemByItemId("Consume", Inventory.ADENA_ID, requiredAdena, player, true);
			if (!check) {
				player.sendPacket(SystemMessageId.YOU_DONT_HAVE_ALL_OF_THE_ITEMS_NEEDED_TO_ENCHANT_THAT_SKILL);
				return;
			}
			
			// ok. Destroy ONE copy of the book
			final int rate = esd.getRate(player);
			if (Rnd.get(100) <= rate) {
				if (general().logSkillEnchants()) {
					LOG_ENCHANT_SKILL.info("ENCHANTED {} using {} with rate {} by {}.", skill, spb, rate, player);
				}
				
				player.addSkill(skill, true);
				player.sendPacket(ExEnchantSkillResult.valueOf(true));
				
				final SystemMessage sm = SystemMessage.getSystemMessage(SystemMessageId.YOU_HAVE_SUCCEEDED_IN_ENCHANTING_THE_SKILL_S1);
				sm.addSkillName(_skillId);
				player.sendPacket(sm);
				
				if (general().debug()) {
					_log.fine("Learned skill ID: " + _skillId + " Level: " + _skillLvl + " for " + requiredSp + " SP, " + requiredAdena + " Adena.");
				}
			} else {
				player.addSkill(SkillData.getInstance().getSkill(_skillId, s.getBaseLevel()), true);
				player.sendPacket(SystemMessageId.YOU_HAVE_FAILED_TO_ENCHANT_THE_SKILL_S1);
				player.sendPacket(ExEnchantSkillResult.valueOf(false));
				
				if (general().logSkillEnchants()) {
					LOG_ENCHANT_SKILL.info("FAILED_ENCHANTING {} using {} with rate {} by {}.", skill, spb, rate, player);
				}
			}
			
			player.sendPacket(new UserInfo(player));
			player.sendPacket(new ExBrExtraUserInfo(player));
			player.sendSkillList();
			final int afterEnchantSkillLevel = player.getSkillLevel(_skillId);
			player.sendPacket(new ExEnchantSkillInfo(_skillId, afterEnchantSkillLevel));
			player.sendPacket(new ExEnchantSkillInfoDetail(0, _skillId, afterEnchantSkillLevel + 1, player));
			player.updateShortCuts(_skillId, afterEnchantSkillLevel);
		} else {
			player.sendPacket(SystemMessageId.YOU_DONT_HAVE_ENOUGH_SP_TO_ENCHANT_THAT_SKILL);
		}
	}
	
	@Override
	public String getType() {
		return _C__D0_0F_REQUESTEXENCHANTSKILL;
	}
}
